Escapement mechanism for type-writing machines.



T .TIME 5 DE mm t2 n e LIU n@ DL APPLICATION FILED 0GT.5, 1911.

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0. PETERMANN. ESGAPEMENT MBGHANISM POR TYPE WRITING MACHINES.

APPLICATION FILED OOT.5,1911.

Patented Dec. 15, 1914..

- 2 SHEETS-SHBET 2,

LQLOQGI t ma m 5 e l 61 pm .0%. mmh h w With Variouslliinds oftypewriting pr similar machines. l

The frame l0 may and of any suitable material, and extendingtransversely hetvveen'the sides thereof rods or supports ll on which thekey-levers l2 are suspended. As shown there are three supports to adaptthe hef-levers to he arranged in groups, and each key-lever is held inits normal position by means of a spring v13, one end ;-t''vl'1ich isheld tothekeylever and the other end to a transverse rod.

' le. The key-levers are each provided With lao buttons or lingerportions vl5 at one end, and at their other ends 'are' connected bylinks lIl 'to type-bars 1'?.y The typebars 17 are pivoted at 18tohangers 19 secured to the rear portion of the frame, and each typebarhas a type-head or blockQO on Which are type indicating the upperl a.plurality' or l case, lower case, and ligures or the like which areadapted to be forced to the .printing point when the key-levers aredepressed.

A rod .2l extends transversely of the ma` chine to 'which is held ashift lever 22 one .end of which is connected to a transverse har 23.This-transverse bar or rod 23 is connected tothe slides or shiitrods 24which are adapted to move vertically in posts or brackets 25 located atthe rear corners oi the machine5 and at'their upper ends the said slidesare connected tobars forming a part of a support 26. lhis support 26 hastwo'sets or Which are pivoted at 9,?? and .mounted on one pair of thehars of saidsupport is bed carriage S29 is adapted to move lengthwise ofthe bed 28 and mounted' in the carriage isa laten 3G.

the said platen and carriage being adapted to be folded forward intooverhanging relation to thelreys so as to rest on the concaved portionSloot' the machine frame.

.A universal bar 3&2 estends transversely ot' the machine over thekey-levers and this bar may normally rest between and 'be guided by theslotted ends of spacebar levers The universal bar 32 is held at its endstolinks 35 and these links are pivoted 'at 36 to thearms 3'? or thebell- Fig. 5 is aV detaillplan view of' for transportation or is to beunderstood that y he of any suitable form l nearer or away from arenosoment oithe hey-levers as the space-bar is depressed, and extendingtransversely of the machine and rigidly held to., thev arms 42 is a baror rod a3, so that' said bar Will ,rock with the arms e2 at eachreciprocationof the `universal bai'. I

rlhe parts thus far described are sulostanH4 tially the same asdisclosed in the patent hereinb'efore referred to and may be of anysuitable' construction A dog carrier 44, in this case in of an arme ispivoted at 44a to the carriage bed 28 and said carrier has asubstantially Ushaped Ior other Aportion l5 integralfwith the bodythereof, a portion of which is adapted to be engaged by a tappet 46 ariranged on the transverse bar 43' or directly by said bar as preferred.This part 45. as will be seen may be readily bent so as 'to the formhave the vertical portion 47 thereof brought the tappet or the bar 43 toproperly position the carrier` with .respect tothe bar. Atv eachmovement ofthe bar l-B, the part 4'( will be engaged thereby and thiswill impart a horizontal swinging movement to the carrier. The carrieris Iiormally forced against the action of the bar 43 and restored toits' normal position by a spring 4-8 one end of which'is held 'to a pinor screw e9' which is held to the carriage hed and which alsol serves tohold a bracket() to the bed. The other end of the spring 48 is held to aprojecting and integral portion 5l on the dog carrier and this portionteeth :'52 located at di'erent distances from the fulcrum or pivotingpoint of the carrier so that by moving the spring toward or.

away from the 'ulcrnm the tension may be increased or diminished asdesired. The carrier has a cnrvedend or head 58 concentric with thepivot of :the ll"carrier, and this end is adapted to be guidedandsupported a slotted angular bracket so aste be guided in an effectiveWay during its horizontal movement.

A substantially triangularxed dog 55 is mounted upon the carrier nearVthe head and this dog has an end which is adapted engage the teeth 57of a' rack 58, the said rack beingl` held to and supported by the base`plate 59 of the carriage, andthe carriage bed 28 being slotted as at59a to permit the dog to pass from below s id bed to a positioirtoengage the rack., The' loose or pivoted dog 60 is spaced somewhat fromthe fixed' dog 55 and has an engaging tooth@ Ll U 'This servia; toijiropizrlr li 52 of t'n (log iv reim il'i@ lixofl (log In), proper(l'op univ on olilry ol' illu; dog' to :ig-.iin :au-li nl'rr llie illu;inirinrirr lvl' tlu, np- -liavrrzs or in :infr ulwr i, line; npii-nllenfl portion urui lli' o wliiitl. ou@ @nii ul' ilu.l i@ mriuwfl.:ilul Swirl lrwr is; 'pir- 4 i lo liu: unil-'cr f-:nrlnrif ol' the rur-'lliif-s llevar inne u purl or mui W? irring in our finir o" time pivot(35,4. iinrl @nii i5 peni zit, :in fingir. iis :it Til, and luis oneedge ilierflol" adapted to engage the inner portion Tl of iii@ enlargedand or head ou' nifl mil-rim'. ll; wiil bf) sven lml by linininizi'inggor oliiwrwise hprrxulingz ille @ntl 'TO ol" ilieiiewr G5. or by filingil. oli` to i'eiiuri il .position of 'tlm nrin Fifi.

ne mona tlw l2 of sziiil lori loqiiliml on tiio opposltv suis oi itspirol 13S will 'ne ulmngferl, This will necessarily Change the positionof the. tooth GQ oi" lw .longe clogl willi rvs mrt to the, tooth ofilu?. ril (logt tlxr relntlw position olI tlm lrubli oi' ilu; logisdepending upon the p0siion off :mn TQ of the lerrr 65 against which iii@Spi-ini? lill norinnllv liolcl4 the )in izmir-uli' iiulepfsniloiil ol'any olz. action :mrl 'mits ilu* ioosr (log to li@ moved on uis; pmol, ufrimsl lie rnsion ol' sind spring.

'lllm @mi l2 oll 'blue liner (l5 has one. end of n :il or liQliff-iilSpring T3 held thermo, llu @nfl of said Spring being! lielfl in on(xoil" @several apertures 74.- ii'i the dog; carricr to nflfrpt ih@lension of said spring to lic rip riad. This spring 73 forces the lieverG5 on pivot GS so lis to munie lw and 70 to be: .rieldingly .heidagainst. the, Surf-(1cm 71 of lha` clog Currier and in suoli n way llmttlm said le wr zit the proper time may more with the loose dog GO andstill permit the springs 73 :1nd 34 to im @nin-@ip independent of auchoilir in. ilieir action. thus adapting the npringgsi "to lm made muchlighter und permitting really ndjusinwnt oi tlm spring/. mui parts."llie loose (log (30 luis it?7 tooth T5 which is end of :1n inral orSimp 'l0 extending: :it :in fingir the body of the log Currier zo limitilu iziiorean'irlil ilu log in one direction und @mimi this tension nl"glie .spring 723 when ,iiriiig iororil in one direcsion 'for paring.

proiifled n'itl'i ii sliuiiifior .i pied lo @ng-age the upper :viv

ilirougli ii, @filings ier :lo is lo moro.

fiar annu on, iis, pii 'ilni i. i "ill lori-lz ilu: loom log out ol' unni tlm iaiirriur, lijr :ir-,lion ol" ilu` springl Tn liar curi-ingr milmow one; npm'r an; is nisiuil :will in .sulnsiiiiiinily tlir :suino nur:is .fs/L i'ortli in luf ,item2 linreinluor referred io.

From tlm forgoing; il', iril lar seen limi `siuipli, und, iliiieny menusi5 provided hereby the czsirriur muy lim@ illu loose dog mountedtl'wrfxoi unil ilk; posiiion cont-rollril by iwo Spring; maling' nnirlyindependent of rush otlir :nul @zich performing iis own functionl liinaadapting' much lighter springs to lie employed; that sind springe; bybeing oi' ii spiral nature muy be more readily adjusted unil lli@ pnl-tnmore eusily uontrnilll, und by wilson olf their loving liggl'i'l.,llicrr is loris friction und wml on alle ucii und (logs unil nt lili@salmo tuna noisy that simple munis is provided lor umininining :nul foripiilily uilj'iuszingg llir dogs mliiiirely .to ruoli olier if.)providiuiownirnl ui propir flrop` inornrr tinil ihr, riuntry of tin`logis in' prorifiril lor; 'limi siinpl@ moans is proriilril n'lnfrvliy irrau'lr uiijusiineiit is obtained lirw'rrn lli@ mirri/er :unl lliu otheropuriiliu Y p-.iris ol rlw wir: ',arincnt inccll unisni; iluit simplemoulu: ii-z provided for ruryingr ilui 'lannion of ilir :spring :loi:mor ingllne log mirrirr in on@` alii-ration, and Llmly .Quill Currier:unil pzirs mounted thm-aon unir or rczuliliv uuulu :nul nsseinlrled.

lliiviuir thus driscriliell mi' inventionT l i-lninl :nl nvr: und(lusirv to r-:ruurv by Lettrrs luiunln l. ln n iypvn'riiiug uuicliine.the combinntion ol' :i support, n rurriz-ig'e :id-pieni 'to more :alongwill Support. u dog' carrier pivoliilli lnlil to ilu? support u piroteiiund zi ixml (logr inounril on /lir ciii'rin'r, Said pir olml flog);living; actuated on ils: piro@ in 0ppfmilr iiirecliong according lo liramovfeinent nla i1', warring@ and springs. iuaiing inde ilw pi rom/u inng nincniiie, (file combicarrurrn adapted 'lo rd. will 'www lili@ otallyh'eld to the to hold the pivoted dog egeinet movement.

= to permit the 4. In :i typewriting machine", en escape ment mecheniemhaving a xed doe' and e pivoted (lo-,gr adapted to be inoveel from anormal position in opposite directions on its pivot, and two springs'acting one et e time to hold the pivoted flog against moven'ientL 5. Ina typewriting machine, env escopeinent mechanism having e xecl dog entia pivoted dog adapted to he moved from e norma-l 'position in oppositedirectionson its pivot, and two coiled springs eating on the "pivoteddogone etno time one directly tending to holclthe pivoted dog againstmovement in one direction and the other tending to hold said pivoted dogmovement inthe opposite direction.

6; In e typewriting machine, the combination of e-snpport, n carriageadapteil to move along seid sup-port, e dog carrier held tothe support,a fixed and a mounted on the carrier, en inepenclent lever pivotellyheld to the carrier intermediate its ends and having n part thereofadapted to engage the pivotecl dog t position the seme relatively to thefixed dogg-and two springs one acting on the pivoted dog' and theotheron the lever and entirely independent of each other and zidnpted toyieldingly hold said pivoterl dog against movement in either rection onits pivot.4

7. In a typewriting machine, the combin-a-- tion of a support, ecarriage adepte@ to movev along said support, e dog carrier held to thesupport, a fixed and si loose dog mounted on the carrier, :inindepenflent lever plvotelly held to the carrier and having e partthereoi` adapted tri-engage the loose Iclog to posit-ion the samerelatively to the iixed dog, emi two .Springs one acting on the loosedog and the other on the lever and entirely1 independent of each other.L

8. In a typewriting machine, the combina,- tion ofe support, e carriageadapted to move along said support, a dogcerrier held to the againstsupport, .a fixed and a. loose dog mounteflon the carrier, lsei loosedog being movable in opposite' directions.

mounted on the carrier antlfheving e 'part .movable clog carrier havinge, loose spring I onder the 'strain oi:

pivoted dog en independent lever theleof adepte to engage the looee dogto position the same 'relatively to the tixecl dogg, enel ineens notingindependently on the loose dog end the lever tending to .hold 'loose dogagainst mevement in eitheif` direction t?. ln e typewriting machine,the-combination of n. support, o carriage, means for forcing thecarriage along seid support, e clog pivotetl thereto and e fixed clogedeptefl to control the letter-spacing .movement of the carriage, andtwo springs having their ten.n sion exerted in opposite directionsendif-iet ing on the loose dogentirely infleienoe L; o each other, oneto position. the' loose do@ with relation to the fixed dog, anti the oth,.i loose Clog to move on pivot under the force ofthe carriage l0. in etypewriting machine', thecoinhination" of forcing the earriageelongsavio support, e dog carrier lniving a loose eno e., tinted dog asupport, :i ce1-ringe, ineens.' for' depterl to control the'letter-specing move,`

ment oi the ceri-inge, alight spring; to posi tion the .loose dog withrelationto the ixeol clog and to permit the dog to move readilyiluringthe backward movement of the cerriuge, a second and stronger springnoting entirely independent of the lighter spring and adapted to permitthe loose dog to move means for operating ineens, yand typewritingmachine, the comlo1 11. In :L lmtion of a support, forcing the carriagealong rack movable with the carry rier having a. pivoteel dog,eelzipteol to control the letr nient of the carriage, and two ofrelativeiy (liiierent strengths heving their tension exertecl inopposite directions and ecting entirely independent ci each other, oneto position the pivoterl clog with rele-tion to the fixed dog end topermit the tog to move o n its pivot during the movement of the carsenelsupport, a

e. e flog cerspacing move.-

vringe in one direction, and the other to permit the pivotecl clog tomove on its pivot during the movement-o3? the carriage in the oppositedirection enti entier the strain of the oerringe forcing Ineens, annimeans for movin? the carrier.

n a typewriting machine, the c'oinlzi nation of eSupport, e carriageadapted to move along seid support, e 'flog carrier heving :i pivotceland fined dog mounted thereon, and. tvvo springs oir' verialole strengthacting entirely independent of each other and exerting their tension inopposite directions and both permitting the loosel dog to move on ,itspivot in opposite directions', one of having :i bodily movement "whentneo'tner spring. is in ection,

18. li a tvpeivriting machine, the comh1- the carriage forcing thecarrier.

e carriage, means for ai 'e fixeti clog;`

iso

Lionello @no notion oi e euooort, e ein-ringe, menne loi' oinzi'tion ol:i support, e onwillige mounted lo ioiei g; *l along sold Support, u tomove along snill ouppoit, e ruoli: movable veel: movable with thecarriage, o (log erwith the coniuge, o dog eeiriei: lieving e riet'inv-:ing e pivoteil :incl o fixed llog- :ieloptloose (log pivotedtlieion enel Y otlepteel to eil to control the letter-splicing movementoi engage the melt, nml tivo opiml springe eet-itlie izeqi'rioge, end.two spi-ings of variable ing entirely independent of enen other on To onnoting on tile loosie Clog entirely inthe looee log enel in eopositefliieetione to `pendent ol'encl otliei' lo move the flog on position andto jpeifnnt o. pivot-1l notion o ite pivot in opposite cliieiirtione,one to posi- .seid dog in opposite iliieotione by tine movei i 1 r Y E nt the pivoteo nog;I ielnti. el) 'Lo toe ,lined niente ol the oni-ringe,enel menne for operati to permit 'une pivotecl log to move ing seuloei-fier. 75

return of tlie ,o enel the 19. In- :i typewriting moeliine, tile nonii'ng' mi the pivoled flog to liiimtion ol: n support, e eoiioge adoptedto i on ite pivot in the oppon nieve along, Seial support, :i i'aoli:movable ii'eoticni u tiie strain of the eoiwith the czufzigm n Clogouvrier pivotelly Yloisoini: A. i unil dining; enoli pivlield to thesupport und .movable horizondo on online n bodily movement oli thetell;v :incl transversely of the molt, a ieel )oqitioning opting'. and:i loose dog mounted upon the corner 'tj/n 'iiting rnmfliine, theeonoloiand' :ulopted to engage the' :vaiolo o lever 3o o siippoit? oeen. 'ge nilepterl to pivotnlly lie-lil to tlio ouvrier and Ieclepteclto 'z along miti support e flog e: iriei' pivform e Stop to position thelooee (log relene o illy oelfl to the Support, nifl cornice-lievtivel)vto 'the ,lined (log, e spring connecting Ai en engaging portion, two(logs one lixerl the level: to the Clog, :in ii'xdel'eniont spring? non't'ne other iivotolly inouni'eil on the ciu'- connectingl the lever tothe eeiiiel', on(` View :l lever lielifl to the Cni'i'iei independentineens Yfoioi'iei'nting ille earlier.

oii ei oei: clog :inellleving one end :ulnplefl 20. ln o tjfpewi'itingmachine, the eoin- 9o to the ene'oglng portion oi the our binfition of:i nuppoit, e carriage adopted to 'to lioli'l seid lever ngoinetmovement in move along swirl su poi-t, e movable flog one iliiieetionout permitting the clog!y to *force ooi-riet' pivotully li'elc to thesupport, liXecl no it in ille opposite direction, nml independent sindlooee clogs mounted upon the confier end meen@- eeting on the level' endthe dog to eonmlopterl to cijinltiol the letter spacing inoveor, iiol tlnotion o the letter. A nient of the omi'i'oge, e lever nivel-elly heldAle. .in o typewiiting inneliine, the oo1nl ito the eei'iier sindncinptecl to Jtorni e stop t0 notion, olf n snijpunt, e eini'ioge lootedto position the loose clog; relatively to the lined 'Elo' inoife alongiii'l support, o. roelheld to the (log, and ineens for )ositioxiingftlieloose clog n iier held to tile support, with respect to the 1level :inclfor yielclingly lo@ iooee enti line flens mounted on the carrier,holding tile lattea` to hold Seid dog against n lever en ginier tileloose clog anni intle'pendpivotal notion. eet A im? eontiollng theposition 2l. l'n o tj-Wpewiiting nieeliine, the eoin`bilo tl wool] :incl:springt-s. one mounted on the nation ol" e support, e eoi'iiogeelepteclto loe/ei' eetl connected 'to the loose clog and the inove along; SeidSupport, e reel; movable mit otherl yielllinfgly holding 'the level' andloose Witli the carriage, e dog ouvrier pivotelly flog? against notion.Aheld to the undef eide of the supportand lo. lo o type'efritingmachine, the com- -.movable horizontally and transversely of theninetion of n, eiio'ooit, :l cin-ringe mounted rock, n fixed and n.loose clog' mounted upon to :nove elo Seiul support, n iaoli: movablethe oeier and adopted to engage the rack, "Sli tlie wifi-nge., o flogcarrier having e ineens adapted to form @Stop toposition the' loose endlined log mounted there loose flog releti'vely to the .fixed clog, oepning goteo to ne mok, sind two connecting seid ineens: to the dog, aninde niilopenizlent of each pendent spring eonneoting oeicl ineens tothe Y log oniite pivot in carrier; and inem or operating the carrier. loposition and oontrol 22. ln a typewi'lting machine, the combil-i loirepezfnl'ing Seial eennation Uo :t support', e flu-finge adapted to movealong snicl'sunpoi't. e roel; held to the i; i. v

ng ineelnne, the oomeorrloge, n dog cau-1e? pivotally held to the il?. ntypewi oinetion of eeu'opoit, n carriage nionntecl Si'ippoi't nt one emiand guided on seid sup- 120 to move :ilonzy soi/l Support, o Cioe'eerrier.- 'port ettlie othex' encl,suiflc:11rier having :1n honing epivo l loose log enel o lined. dog engaging portion, two dogs onelixeclnnd the. mounted M1ere-on, and two nepi-ings noting 'other loosemounted upon the oni-rior, a subivll entiifeiv independent of eeoliother nucl eot. Stentiollv T-shepecl lever pivotnlly held to ing;- onthe loose dog to move the latter on its the carrier and having one `endadapted to pivot enel to position enel oontol seid flog, 4engage theengaging portion of `the carrier, enti means for opereting seid corner.e spring connecting the lever to the loose 18. In e typeivritingmachine, the oom-` clog, en independent spring connect-ing the @mms-sIWW tofthe cariisr,ai1d"means for operating hld to lie carriar annihaving one @mi the cazrer. adapted to engage the engaging portion of ima tjfpewiiting machine, the combithe carrier, and springs coparating.with l5 .nation of a support, a sam'i'sge adapsd i'o Suid lever toposition and control the movemove along said support, s, rack to themens of the loose dog.

Carriage, a dog carrier pivoliy heidi@ *the This speciicaticn signed andwitnessed suppnit at @me @mi and' gmec on Said sup this 29th day ofSepsembar, A. D. 1911.

engaging; por'ieiia Loose and xed dogs mounted. 'on ih?, f fier, said@au-riez' having Witnesssm im integral @mjaczing par?, 's imi't heLEQNIE M.'BACKUS, movement s?? is ooss dog, a liever pivoaliy W. G.RHODES.

